完善自动励磁调节器TV断线判别逻辑的措施探析

Discussion on the Measures of Improving the Judgment Logic of Voltage Transformer Disconnection with Automatic Excitation Regulator

摘要:

选用 ABB 公司 UNITＲOL 5000 型自动励磁调节器的大型汽轮发电机组，TV 断线判别逻辑存在不完善问题。 通过对一起 TV 断线引发误强励、造成停机事件的典型案例分析和探讨，提出了完善 TV 断线判别逻辑的建议措施和 现场试验方法，保证自动励磁调节器安全可靠运行。

Abstract:

The judgment logic of potential transformer breaking is not perfect for large steam turboset with ABB UNITＲOL5000 automatic excitation regulator． A typical accident of faulty forced excitation caused by potential transformer breaking which leads the generator to be out of service is analyzed and discussed． The measures and field test methods for improving the judgment logic of potential transformer breaking are proposed to ensure the safe and reliable operation of automatic excitation regulator．